Paul ceeedo



unconsumed coal, and for sifting or separating other substances; and itconsistsiuthe employment e of a' i elevated end with a journal, d, saidjournal being fitted in proper bearings,e,` the, innerI sides `of g. 1.Gr is `a spring which is attachedat one end to the vunder side of thetopmlofjtlh t nrtrh ,tetes garant ffnet ASH surta.

PAUL onREDo, or MomREAn` CANADA EAST, ASSIGNQRJrtiisisnn` u JAMESHASPRINGLE, oF MONTREALUANAD f p Lettere JPetene'Ne` 59,964, datedNeeember` 27, 1866. i

p SPECIFICATION; TO ALL WHOM IT MAY CONCERN: p Be it known that I, PAULCEREDO, of Prussia., now temporarily `residingin] Montrealrin theProvince of Canada East, haveinvented a new and improved lScreen orSifting Device; andIdohereby dcclarca` that the" p p following is afull, clear, and exact description thereof, which will enabletlioseslrilledli'n theiarttouniakeand 1i e Y use the same, 4referencebeing had to the accompanying drawings,lforming partio'fthisfspecication, inhichfi A i Figure 1 is a side sectional view of myinvention. i i Figure z2, a horizontal section of the same, taken in thelinea: 5:, g. 1.

Similar letters of reference indicate corresponding parts. p A p p A A li p A, This invention relates ,to a new and improved screen or siftingdevicefor separating, ashes from ciuders lo screen-box, providedwithaproper screen, and fitted within a suitable case or bok soasto `work onals `013 A pivots, andioperated through the medium of a cam and spring,the case in which saidlscreen-,box is place be' provided with dischargespouts so arrangedin relation with the screen-box as ,to discharge` `the`two parts," whichi are separated from each other by the' screeningprocess, from different partsof: the `ewand `int parat receptaclesprepared to receive them. e 'l i Y l l `3 A represents a case, the upperpart, a, of which is of reetangulariand ,the` lower ;par`t",\b i'pyramidal form. This case is supported at a suitable height by meansoflegsc, an hin pp a, of the case there `isplaced a rectangularscreen-box, B, havinga screen, 0,w i i i This screen-box has a slightlyinclinedposition, and it Ais providedQatueaohiside oi" he loweifp thefront or depressed 'end of the screen-box, when at its lowest point,restingo `the ruppe of the sides of the lower part, b, of `the caseA-see iig. 1. D representsa shaft,` through the upper part, a, of thecase, and has a cam, E, upon it of triangular forni, the screen-box, andthe cam E acting uponor against a pin in' the front ,partiofpt site and`free end bearing upon the upper part of the depressed end of thescreen-boi at ab is a hopper, which is fitted in the top of the case A,and conducts the material` t 'ft B, at its elevated 4end. A A, the lowerend'of the part b of thei case A, there is "'ope is attached, exibleorrigid, and a spout J is attached to the end of thepart a of `the x f,which is in line with an opening, g, in the depressed end of thescreen-boxBsV f i The operation is as follows: The substance to bescreenedI or sifted isz poured into` theA hoppergj,

conducts itinto the screen-box, B, at its elevated end, and, motionbeing communi d to` the shaft; i i i convenient power, the cam, E, willraise the depressed end of the screenboir,"]`3,j1n sequence ofgtheanglesofl the `cam striking against thepin F, the screen-box being forceddown, as ,eachpromiuence ofthe cani passes the pin, bythe spring G. Bythis `means avibratory motion is givenkthe screenbo i dithe `fine part'i the substance being screened pass through the screen C and down intothe llower i i i discharged through the spout I into any convenientreceptacle prepared to particles which cannotpass through the screen aredischarged fromthe depressed end` opening, g, in the depressed end ofthe screen-box, and through an opening,f, in theca conducts them intoareceptacle prepared to receive them. In sifting heavy llsiibstances1dispensed with, as the screen-box B will in that case fall suicientlyquick under `tliefweght of `itsfcoirt` in sifting `light substances thespring would be desirable-in order to `insure a `vly;` motion of thescree Having thus described lnyvinvention, I claim as new, and desire tosecureiby ,Lett sPaten The arrangement of the screen-box B, cam E,springG, spouts IJ, `cmxatruct nd `oper` manner and for the purposeherein specified.`

Witnesses Josnrn PnAscnEn, FRANZ Wurz.

